FNUS73 KDMX 130956 FWSDMX SPOT FORECAST FOR PLC EAST...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 456 AM CDT WED APR 13 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 13. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... A COLD FRONT WILL GRADUALLY PUSH SOUTH INTO CENTRAL IOWA BY LATER THIS AFTERNOON. SOUTH WINDS WILL SLOWLY BECOME MORE EAST WITH TIME AS THE FRONT APPROACHES. THERE IS LITTLE THREAT FOR RAINFALL UNTIL LATER TONIGHT. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). TEMPERATURE.........59 AT IGNITION...MAX 71. RH..................55 PERCENT AT IGNITION...MIN 39 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1000 FT AGL INCREASING TO 6500 FT AGL. MIXING WINDS........EAST 5 TO 10 MPH. SMOKE DISPERSAL.....FAIR (42100 KNOT-FT) INCREASING TO GOOD (54100 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........WINDS SOUTH AT 7 MPH AT IGNITION...OTHERWISE EAST WINDS 6 TO 7 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........50 49 48 48 49 51 54 56 58 WEATHER COV..... WEATHER TYPE.... TEMP............59 62 65 67 69 70 71 70 69 RH..............55 50 46 45 42 41 39 41 44 20 FT WIND DIR..S S SE SE SE SE E E E 20 FT WIND SPD..7 7 7 7 7 6 6 6 7 20 FT WIND GUST. MIX HGT (KFT)...1.0 2.4 3.8 5.1 5.6 6.1 6.5 6.3 6.0 MIXNG WIND DIR..S S SE E E E E E E MIXNG WIND SPD..7 7 6 6 7 8 9 10 10 HAINES INDEX....5 5 5 5 5 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. TEMPERATURE.........MIN 48. RH..................MAX 86 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5700 FT AGL DECREASING TO 2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTHEAST 8 TO 13 MPH. SMOKE DISPERSAL.....GOOD (51200 KNOT-FT). WIND (20 FT)........EAST WINDS 8 TO 13 MPH. TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........59 74 89 87 WEATHER COV..... CHANCE CHANCE WEATHER TYPE....NONE NONE RNSHWR RNSHWR TEMP............68 60 56 52 RH..............45 60 69 80 20 FT WIND......E 8G10 E 9G10 NE 10G15 E 12G15 MIX HGT (FT)....5700 300 1000 1000 MIXNG WIND......E 10 NE 8 NE 12 NE 13 HAINES INDEX....4 4 3 3 $$ FORECASTER...COGIL REQUESTED BY...JAMES KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20110413.PLCEA.02/DMX